Question about the Hacker Aluminum Mount A50. It looks like the motor mounts to the inside of the front of the bracket. If that is the case then the bolt on prop adapter can not be used correct? I am not a fan of the collet type.

What kind of your model airplane foam, balas , thin plywood, or figerglass?
What you have type motor?
Prop adapter to motor when screw front will do clamp it.
Example: Mount on plywood will do bolt and nut

I understand the X mount will work but I do not want to build a plywood mount. I would like the simplicity of an adjustable metal mount. I have a Hacker A50. Looking for people who have used the Hacker mount. Looking at pictures it looks like you can only use a collet type prop adapter if you use the Hacker mount.